Have you seen the 1850 census? There was a Philo Snyder in Durham, age 14. He was the son of Philip (47) and Margaret (48 and deaf). No sign of triplets. But siblings were Betsy, 17, Nelson, 9, Demeris, 6, Enos E., 3, and Caroline, 1. There was also a John in the household, age 23.